Book Photo




The main objective of this course in mechanics is to develop in the engineering/physics student the ability to analyze any problem in a simple and logical manner and to apply to its solution a few, well-understood, basic principles.  A cooperative problem solving approach is taken where students develop time management skills and teaming skills.

PowerPoint Shows

Engineering Dynamics



Dr. Harry D. Downing
Department of Physics, Engineering and Astronomy
Stephen F. Austin State University




Vector Mechanics for Engineers:  Statics and Dynamics (11th Ed.)

by Beer, Johnston, Mazurek, Cornwell, & Self
ISBN:  9780077687298 or 9781260052848 or 9781260053432 




Spring 2018

Department Course Syllabus (General)

Downing’s Lecture Syllabus

Course Calendar
Office Hours:  11:00-11:40 MWF; 2:30-3:30 TWR, or by appointment

Office:  Miller Science Room 322B

Attendance Policy

University Policy on Academic Dishonesty



Assignment for the semester – due dates will be given in class.

Downloadable cover page.


Test Equations


Equations to study for exams


Access PHY/EGR 321 Grades

Email Communications

One way to contact your instructor is by sending email to Use your SFA email account for all email communications with your professor.  To get a free jacks email account go to

You may forward e-mail from your jacks e-mail address to another address of your choice. To do this use this link:

PowerPoint Lectures Online

Some PowerPoint shows used in class are available at links on the left side of this page.  Viewing these is no substitute for class attendance since the shows for the most part are outlines.  If you don’t have PowerPoint on your computer, follow the instructions below to download a free viewer.

  • Step 1: Download Microsoft's Free PowerPoint Viewer to a temporary directory (e.g. c:\Temp\).
  • Step 2: Download one of Dr. Downing's PowerPoint Lectures to the same temporary directory.
  • Step 3: Run Microsoft's Free PowerPoint Viewer for the PC. You will find it in the temporary directory.
  • Step 4: Load one of Dr. Downing's PowerPoint Lectures and enjoy.

Harry Downing
This page was designed by Dr. Dan Bruton